Longspine Thornyhead

Sebastolobus altivelis

Body color: Bright red w/ black areas on fins and body, dark spot on posterior part of spinous dorsal fin; gill chamber mostly dark.

Peritoneum color: light w/ spots     Shape between eyes: concave

Counts: D:XV-XVII,8-10, Ar:4-6, P1:22-24, GR:21-26, LLp:28-32, LLs:32-38, V:29

Occurence: Gulf of Alaska - Baja California

Depth: 1755 meters     Size: 38 cm     Species code: 30030

Similar species: Shortspine Thornyhead - dorsal spine 3 shorter than 4; pectoral fin w/ strong notch; gill chamber mostly pale; dorsal spines typically 16 (typically 15 in ). Broadbanded Thornyhead - ventral pectoral rays highly branched, lobe-like; body deeper. Aleutian Scorpionfish (genus Adelosebastes) - cheek spines 1-2, weak; lower pectoral rays fingerlike; head spines very large; body deep. Other Rockfishes (genus Sebastes) - cheek spines absent; pectoral fin wedge-shaped w/out notch; body deep; dorsal spines 12-15 (15-17 in ).

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